Posted by Willie The Wimp on November 9, 2009, 5:51 pm
Older CBR600, lo-miles.
Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
top, dis-engage clutch, coast down hill in 3rd. with clutch lever
actuated. When I hunker down, I can hear a sort-of growling/grinding
noise.
This is "normal operating noise" for a bike with a wet clutch?
Willie
Posted by Shantideva Upasaka on November 9, 2009, 5:59 pm
wrote:
> Older CBR600, lo-miles.
> Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
> top, dis-engage clutch, coast down hill in 3rd. with clutch lever
> actuated. When I hunker down, I can hear a sort-of growling/grinding
> noise.
Wet clutch baskets will make a low frequency clattering clunking noise
at about 1/3 the engine RPM with the clutch lever OUT.
If you pull the clutch lever IN and the noise goes away, that's the
clutch basket
flopping around a liitle bit on its bearings which ride on the
transmission mainshaft.
If there is still a lot of clattering and clanking with the clutch
lever pulled IN all the way, the two other suspects are a loose or
worn out cam chain, or a starter clutch that's flopping around on its
shaft.
Posted by The Older Gentleman on November 10, 2009, 2:14 am
> If there is still a lot of clattering and clanking with the clutch
> lever pulled IN all the way, the two other suspects are a loose or
> worn out cam chain, or a starter clutch that's flopping around on its
> shaft.
Wrong again. Different type of noise entirely.
--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com
Posted by The Older Gentleman on November 10, 2009, 2:14 am
> Older CBR600, lo-miles.
>
> Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
> top, dis-engage clutch, coast down hill in 3rd. with clutch lever
> actuated. When I hunker down, I can hear a sort-of growling/grinding
> noise.
That'll be the chain and transmission.
>
> This is "normal operating noise" for a bike with a wet clutch?
>
It's not the clutch. Not if you have the lever pulled in..
--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com
Posted by Willie The Wimp on November 10, 2009, 1:57 pm
On Tue, 10 Nov 2009 07:14:38 +0000, totallydeadmailbox@yahoo.co.uk (The Older
Gentleman)
wrote:
>> Older CBR600, lo-miles.
>>
>> Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
>> top, dis-engage clutch, coast down hill in 3rd. with clutch lever
>> actuated. When I hunker down, I can hear a sort-of growling/grinding
>> noise.
>That'll be the chain and transmission.
>>
>> This is "normal operating noise" for a bike with a wet clutch?
>>
>It's not the clutch. Not if you have the lever pulled in..
OK.
A 2nd scenario. I go out the garage, start the bike cold, hold the
clutch lever in whilst in neutral gear, hear a very similar sort-of
growling/grinding noise. By the time I roll the bike out the garage
(maybe 15 seconds), the noise stops. I always try to wait for this
before shifting to 1st gear (less clunk).
Normal clutch noise?
Thanks,
Wille
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> Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
> top, dis-engage clutch, coast down hill in 3rd. with clutch lever
> actuated. When I hunker down, I can hear a sort-of growling/grinding
> noise.